package com.zheng.hospital.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.zheng.hospital.service.OssService;
import com.zheng.hospital.util.ConstantOssProperties;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;

@Service
public class OssServiceImpl implements OssService {
    @Override
    public String upload(MultipartFile file) {
        String endpoint = ConstantOssProperties.ENDPOINT;
        String accessKeyId = ConstantOssProperties.ACCESS_KEY_ID;
        String secret = ConstantOssProperties.SECRET;
        String bucket = ConstantOssProperties.BUCKET;
        try {
            OSS client = new OSSClientBuilder().build(endpoint, accessKeyId, secret);
            InputStream is = file.getInputStream();
            String filename = file.getOriginalFilename();
            //生成随机唯一值，使用uuid，添加到文件名称里面
            String uuid = UUID.randomUUID().toString().replaceAll("-","");
            filename = uuid+filename;
            //按照当前日期，创建文件夹，上传到创建文件夹里面
            //  2021/02/02/01.jpg
            String timeUrl = new DateTime().toString("yyyy/MM/dd");
            filename = timeUrl+"/"+filename;
            //调用方法实现上传
            // 1.jpg    /a/b/1.jpg
            client.putObject(bucket, filename, is);
            // 关闭OSSClient。
            client.shutdown();
            //上传之后文件路径
            // https://yygh-atguigu.oss-cn-beijing.aliyuncs.com/01.jpg
            String url = "https://"+bucket+"."+endpoint+"/"+filename;
            //返回
            return url;
        }catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }
}
